Biceratopsidae
From Infogalactic: the planetary knowledge core
Biceratopsidae |
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Biceratopsidae
Pack & Gayle, 1971
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Biceratopsidae is an extinct family of redlichiid trilobites, with species of small to average size. Species of belonging to this family lived during the Toyonian stage (Olenellus-zone), 522–513 million years ago, in the former continent of Laurentia, including what are today the south-western United States and Canada. It contains the subfamilies Biceratopsinae and Bristoliinae.[1]
Habitat
The Biceratopsidae were probably marine bottom dweller, like all Olenellina.
References
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